no
what you're talking about is when there's also proof that someone is breaking the law, and proof that money made from law-breaking was spent on the assets that are confiscated. That's been going on for 30+ years in the Western world.
what I'm talking about is something new:
the UK authorities now claim the right to confiscate property even when they have no evidence that criminality funded asset purchases. As long as there is any doubt as to how the money used in property purchases was earned (which is why foreign owners are easily targeted by this new law), then the property is confiscated without reimbursement
the London property market in particular could be badly weakened by this, the percentage of foreign buyers (who may or may not be earning money from criminality) is very high in London.